Governor



June 20, 1933. E. R. KLEMM, JR., Er AL I GOVERNOR Filed No. 4, 1929 I from the carburetor.

Patented .lune 20, 1933 UNITED STATES EMIL R. KLEMM, JR., AND FREDERICK O. SINGER, OF CHICAGO, ILLINOIS, ASSIGNORS, BY

PTNr? oFFic MESNE ASSIGNMENTS, TO KLEMM AUTOMOTIVE PRODUCTS COMPANY, OF CHICAGO,

l ILLINOIS, A CORPORATION OF ILLINOIS GOVERNOR Application filed November 4, 1929. Serial No. 404,825.

lopening when the valve is closed, and a convenient mounting for the valve member proper, all in a single unitary structure; also a configuration of the surface of the valve facing the incoming stream, of particular advantage in securing eective operation.

A In the drawing, wherein like reference characters indicate like or corresponding parts:

Fig. 1 is a plan and partial sectional view'of the device; v v

Fig. 2'is a section taken along the line 2--2 of Fig.f1; l

Fig. 3 is a section taken along the line 3-3 of Fig. 1;

Fig. 4 is a section taken along the line 4-4 of Fig. 1; and

Fig. 5 is a sectional view illustrating another form of butterfly v alve.

AReferring now ito the drawing, the governor Vincludes a casing 11 normally interposed between a tubular member 12 leading to the engine and a tubularmember 13 leading Any suitable means may be employed for attaching the .tubular members 12 and 13 to the casing 11, anges 141 and 15 being shown as secured to the casing by means of bolts 16.

A spindle or shaft 19 extends across a rectangular passage 17 in the casing 11 to provide a mountingfor a plate 18, which is fastened to the shaft by means of screws 26 or the like. lThe` fastening of the plate 18 to the spindle 19 creates an unbalanced valve so,

is ymounted in close proximity to the side wall of the casing 11. The portion of the spindle within the passage 17- has two segments cut away, a large segment on the left' as seen in Figure l to form a support for the valve 18, and a smaller segment on the right leaving the flat face 35. When the plate 18 is moved to its uppermost position, the face 3K5 is parallel to and spaced away from the adjacent wall of the casing 11 and provides an open- When ing 36 acting as a vacuum release.

the plate 18 is in its downward position the convex portion of the shaft is in sulllciently close proximity to the side wall of the casing 11 to substantially close the opening 36 and prevent gas from passing the valve.

The initial flow of the fluid upwardly through the aperture 17 creates an unbalanced pressure upon the plate 18, tending to move the plate towards its closed position. l The plate 18-is shown with an integral lateral flange or baille extending transversely across substantially its entire width in general parallelism with the pivot. The baille 30 1s on the side facing the incoming stream,

and is slightly spaced from the outer edge o f the valve plate 18. It thus defines a relatively small rectangular pocket opening downward and away from the pivot, and another larger pocket opening toward the p1vot. i.

lIVe have found that in the absence of the baille 30, the plate 18 tends to be somewhat unstable in certain intermediate positions, 'and that the presenceof the baille eliminates this instability. We believe the reason for this to be that the baille shields the gas -in the. space defined by the larger pocket, in which gas the impact of thefrising stream would otherwise set up a large and violent eddy current `or vortex.

One end of the spindle 19 projects through a wall of the casing 11 into a housing 2Q. The housing 20' is fastened to the casing by vmeans -of a plurality of bolts or screws 28.

A wall 27 of the housing 20 is removable to stop .limiting the downward movement of the free end of the lever 21 and thereby also limits the downward movement of the butterfiy plate 18.

A spiral spring 25 is fastened to the lever 21 near its point of connection with the spindle 19 by means of a pin 29. The other end the like for adjustment. In Fig. 2 the member 21 is shown in full lines in its lowermost position and in dotted lines in substantially its uppermost position. For this position of the member 23 there is relatively slight or no tension in the spring 25, the spring being maintained in a substantially straight-'line by the weight of the unbalanced butterfly valve and extending downwardly in a direction tangential to the upper curved surface of the lever 23 at its point of connection with arm 21.

The flow of fluid through the passage 17 rotates the'plate 18 towards its closed position, such rotation being resisted by the spring 25. `As the plate 18 rotates towards itsclosed position it presents a constantly increasing pressure area to retard the flow of fluid and a correspondingly greater force is thereby exerted upon the spring 25. As the plate 18 rotates upwardly the corresponding rotation of the lever 21 will cause the adjacent portion of the spring 25 to'wrap about the upper curved surface of the lever. This wrapping of the spring 25 about the upper surface of the lever 21 increases the effective length of the lever, such effective` length at any instant being the distance from the center of the spindle 19 to the middle of that portion of the spring then in bearing contact with the lever 21. As a result, the

higher the plate 18 is moved, the greater the resistance offered bv the spring 25 and the lever 2l to any further rotation of the plate 18. The spring 25 and the arm 21 are so constructed as to counterbalance the pressure on the plate 18 in some predetermined position, leaving a correspondingly predetermined portion of the passage 17 free lfor the flow of fluid.

If it is desired to increase the maximum effective speed of the engine, the upward movement of the plate 18 is limited so that a greater portion ofthe aperture- 17 will be open to the passage of fluid. This result is accomplished by threading the bolt member 33 downwardly through its mounting 24 and thereby increasing the initial tension of the spring 25 as well as increasing` the @He tive length of the arm 2l for the initial movement of the plate 18. The further down the bolt 23 is threaded the greater is the initial resistance offered by the spring 25 to the turning of the plate 18,and the amount of rotation of the plate 18 will be correspondingly limited so as to leave a larger open passage 17 for the counterbalanced position of the plate 18.

In Fig. 5 is shown a modified form of the invention wherein the butterfly plate 31 is provided with a plurality of serrations 32 arranged to function as bailies. The serrations 32 retard the movement of air through the wedge shaped space betweenthe plate 31 and the adjacent wall of the passage 17. As a result, the plate 31 responds more quickly to the pressure created by the upward iiow of gas striking the under surface of the plate and adds to the responsiveness of the device to slight changes in the flow of gas.

Having thus described my invention, it is obvious that Various immaterial modifications may be made in the same without departing from the-spirit of my invention; hence, I do not wish to be understood as limiting myself to the exact form, construction, arrangement, and combination of parts herein described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. In a governing device of the kind described, a casing providing an intake conduit leading to a motor, a butterfly valve mounted within the conduit and having a shaft projecting through the casing, said shaft having an eccentric mounting, whereby said shaft is spaced away from the adjacent wall of the casing when the valve is in closed position and in substantial contact with said wall when the valve moves to open position.

2. In an automatic governor for internal combustion engines, a square passageway for delivering combustible mixture to an engine, a pivot flap valve in said passageway, having a straight edge remote from the pivot positioned to move against a wall of the passageway remote from the pivot, the face of said valve opposing the incoming gases having a straight shoulder parallel to said edge and offset therefrom a minor fraction of the distance from said edge to said pivot, said shoulder being defined by a transverse ridge generally parallel to the pivot defining a pocket opening away from said pivot and another pocket opening toward said pivot.

3. In an automatic governor for internal combustion engines, la passageway for delivering combustible mixture to an engine, a pivotal flap valve in said passageway, having an edge remote from the pivot positioned to move against a wall of the passageway remote from the pivot, the face of said valve opposing the incoming gases having a shoulder, said shoulder being defined by a transyverse ridge extending generally parallel to the pivot and substantially across the entire width of the valve defining a pocket opening away from said pivot and another pocket opening toward said pivot.

4. In an automatic suction-operated speed control for internal combustion engines, a passageway for conveying explosive mixture to an engine, a pivot in said passageway near one side thereof,land a butterfly valve on said pivot, the portion of the valveadjacent the pivot, and the adjacent wall of t-he passage being shaped so that rotation of the valve to closed position opensva relatively small pas sageway between the pivot and the adjacent wall of the passageway.

'5. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit with at least one flat side, a shaft journaled in said casing and extending transversely across said conduit in close proximity to said flat side, the portion of said shaft extending across said conduit having a segment cut away on one side to open and close a passage between said shaft and casing as the shaft is rotated.

6. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit with at least one fiat side,I a shaft journaled in said casing and extending transversely across said conduit in close proximity to said flat side, the portion of said shaft extending across said conduit having a segment cut away on one side to open and close a vpassage between said shaft and casing as the shaft is rotated, and another segment cut away on the other side of said shaft to form a seat for an unbalanced flap valve. v

7. In a suction-actuated automatic speed governor for internal combustion engines, a

. casing having an intake conduit, an unbalanced valve in said conduit, a rotary shaft for said valve extending through said casing and lhaving one projecting end only, walls deining a compartment housing the projecting end, one of said walls lying in a plane parallel to but remote from the axis of said shaft, screw threaded adjustment means adjacent to and operating parallel to said last mentioned wall, and externally accessible for adjustment at one corner of said compartment, and a resilient control-connection between 'said adjust-ment means and the said shaft, arranged to have its effective resistance to shaft movement increased by movement of said screw adjustment means away from the point of adjustment. and decreased by movement in the opposite direction; said connection including a resilient element, a rigid arm on said shaft., and a' connection between said elelnent and said arm arranged to vary the spring tension, and the direction of force spring element bearing against the arm, as the arm-rotates about the axis of the shaft.

8. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit, an unbalanced valve in said conduit, a rotary shaft for said valve extending through said casing and having a projecting end, walls defining a compartment housing the projecting end, one of said walls lying in a plane parallel to but remote from the axis of said shaft, screw threaded adjustment means adjacent to and operating parallel to said last mentioned wall, and externally accessible for adjustment at one corner of said compartment, and

-a resilient control connection between said adjustment means and the said shaft, arranged to have its effective resistance to shaft movement lincreased by movement of said screw adjustment means away from the point of adjustment, and decreased by movement in the opposite direction.

9. Ina suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit, an unbalanced valve in said conduit, a. rotary shaft for said valve extending through said casing and having a projecting end, walls defining a co1npartment housing the projecting end, one of said walls lying in a plane parallel to but remote from the axis of said shaft, screw threaded adjustment means adjacent to and operating parallel to said last mentioned wall, and externally accessible for adjustment at one corner of said compartment, and a resilient control connection between said adjustment means and the said shaft; said control connection including a resilient element, a rigid arm on said shaft, and a connection between said element and said arm arranged to vary the spring tension and the direction of force of the spring element.

I0. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit, an unbalanced valve in said conduit, a rotary shaft for said valve extending through said casing and having va projecting end, walls defining a compartment housing the projecting end, one of said walls lying in a plane parallel to but remote from the axis of said shaft, screw threaded adjustment means adjacent to and operating parallel to said last mentioned wall, and a resilient control connection between said adjustment means and the said shaft; said control connection including a resilient element, a rigid arm on said shaft, and a connection between said element and said arm arranged to vary the direction of force of the spring element as the arm rotates about the axis of the shaft.

11. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit, an unbalanced valve ink said conduit, a rotary shaft for said valve ezitending through said casing a and having a projecting end, walls defining a compartment housing the projecting end, one of said walls lying in a plane parallel to but remote from the axis of sa-id shaft, screw threaded adjustment means adjacent to and operating 'parallel to said last mentioned wall, a resilient control connection between said adjustment means and the said shaft; said control connection including a resilientv element, a rigid arm on said shaft,

and a connection between said element and said arm arranged to vary the spring ten. sion and the direction of force of the spring element'as the arm rotates'about the axis of the shaft; and a cover closing said compartment, said screw adjustment means extending to one corner of the compartment and atl v that corner being accessible for manual adjustment without removing said cover.

l2. In a suction-actuated automatic speed governor for internal combustion engines, a casing having an intake conduit with at least one substantially flat side, a shaft journaled l f in said casing` and extending transversely across said conduit in proximity to said fiat side, anunbalanced valve on said shaft and in said conduit, said shaft having aprojecting ,30. end, walls defining a compartment housing the projecting end, one of said Walls lying in ka plane parallel to but remote from the axis of said shaft, screw threaded adjustment means adjacent to andl operating parallel to said last mentioned wall and includingr a male threaded'member parallel to said wall, and a female threaded member receiving said male member and restrained against rotation and movable parallel to said last mentioned wall by rotation of said male member, and a resilient control connection between said female element and said shaft; said'control v externally accessible for rotary ladjustment Without removing said cover, said shaft, valve, and rigid arm being limitedto a rotary movement less than 'ninety degrees.

In witness whereof, we hereunto subscribe .our names` this 31st day of October, A. D,

Y EMIL R. KLEMM, JR.

FREDERICK o; SINGER.

. 4 DISCLAIMER A. 1,915,188.-'-Emil R. K'lemm, jr. and Frederick 0; Singer, Chicago, Ill. GOVERNOR.

Patent dated June 20, 1933. Disclaimer filedJune 29, 1934, by the assignee,

Klemm Automotive Products .Compa/ny.

Hereby enters this disclaimer tovclaim 12 in saidv L ettersPiatent, -the, said claimv being here quoted as follows, to wit: Y t

12. In a suction-actuated automatic speed governor for internal combustion engines, a casing having .an intake conduit with at least one substantially flat side, a shaft journaled in said casing' and extending transversely across saidconduit in proximity to said Aflat side, an unbalanced valve on said shaft and in said conduit, said shaft having a projecting end, walls defining a compartment housing the projecting end, one of said walls lying in a plane parallel to but remote frornthe axis of said shaft, screw threaded adjustment means adjacent to and operating-parallel to said last mentioned wall and including a male threaded member parallel to said wall, and

a female threaded member receiving said male-member and restrainedagainst rotation and movable parallel to said last mentioned wallby rotation of said male member, and a resilient control connection between sald female relement and said shaft;

said control connection including a resilient element, a rigid arm 'onvsaid shaft, and

a connection between said element and said arm arranged toA vary the spring tension j as the arm rotates about the axis of the shaft; and a cover closinglsaid compartment,

said male threaded member extending through onecorner offsaid'compartment and at that corner being externally accessible for rotary `adjustment without removing i said cover, saidv shaft, valve, .and rigid arm `being limited to arotary movement less ,'f

than ninety degrees.

[oicwz Gazette July 24, 19:34.]

Dlsl- AlMER y 1,915,18,8.-Emil R. Klemm, Jr.,- arid Frederick 0. Singer, Chicago, Ill.v GOVERNOR.

Patent dated June 20 1933. Disclaimer filed January 7, 1937', by theassignee, Klemm Automotive Products Company.v l

Patent. Y l

I [O cial Gazette February 2, 1937.]

Hereby enters this disclaimer to claims 1, 4, 7, 8, 9, and 1.1 in said Letters I 

